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1 CMOD-WIDE DESIGNATION C C, C C, C C C, C C, C C D D J J ED P, P R R R, R R QTY DESCRIPTION 0µF, V electrolytic capacitor 0.µF ceramic capacitors µf ceramic capacitor µf, V electrolytic capacitors pf ceramic capacitors 00µF, V electrolytic capacitor N00 diode NA V, W zener diode -circuit terminal block Right-angle printed circuit board mount, DB female socket ight-emitting diode 0-pin right-angle male connectors 0MΩ, % resistor 0kΩ, % resistor 0kΩ, % resistors 0Ω, % resistor DESIGNATION SW SW U U U U U U U, U U, U U, U U U0 Y QTY Component ist DESCRIPTION Slide switch Momentary pushbutton switch C microcontroller MCCZCFC (-pin plastic quad flat pack) Maxim MAXCPP C EPROM containing monitor program -pin socket 0 regulator, TO-0 size eatsink, thermalloy # 0 (K x ) static RAMs CT bidirectional buffers 0-pin sockets Maxim MAX0CPA Maxim ICCPA.kz watch crystal CMOD-WIDE R 0kΩ, SIP resistor None Rubber feet R 00Ω, % resistor None " x " printed circuit board General Description The CMOD-WIDE module is an assembled and tested printed-circuit board intended for use with Maxim s high-speed evaluation kits (EV kits). The module uses a full -bit implementation of Motorola s MCCZ microcontroller (µc). It requires an IBMcompatible personal computer and an external DC power supply, typically V or as specified in the EV kit manual. Maxim s CMOD-WIDE module allows customers to evaluate selected Maxim products. It is not intended to be used as a microprocessor development platform, and such use is not supported by Maxim. Detailed Description Power Input Connector J The CMOD-WIDE module draws its power from a user-supplied power source connected to terminal block J. Be sure to note the positive and negative markings on the board. A three-terminal V regulator allows input voltages between V and an absolute maximum of 0V. The CMOD-WIDE module typically requires 00mA of input current. C Microcontroller U is Motorola s CZ µc. Contact Motorola for µc information, development, and support. Maxim EV kits may use the -bit wide bus or use the high-speed queued serial peripheral interface (QSPI ) and the internal chip-select generation. A MAX0 on the module (U) monitors the V logic supply, generates the power-on reset, and produces a reset pulse whenever the reset button is pressed. QSPI is a trademark of Motorola Corp. Maxim Integrated Products For free samples & the latest literature: or phone For small orders, phone ext..

2 CMOD-WIDE CMOD-WIDE The CMOD-WIDE module uses a phase-locked loop (P) to set its bus speed. Crystal Y is a.kz frequency reference. The internal oscillator runs times faster than the external crystal. When the CMOD-WIDE module is reset, it waits for the P to lock before it executes any software. After the P locks onto the reference frequency, the software doubles the clock speed by writing to the clock synthesizer control register, selecting a bus speed of.mz. U and U, the user RAM area, are kbyte CMOS static RAMs. The CT octal buffers let the CMOD- WIDE module access a -bit port on the interface connectors. This memory-mapped port consists of separate read and write strobes, four chip selects, four address SBs, and sixteen data bits. Serial Communications J is an RS- serial port, designed to be compatible with the IBM PC -pin serial port. Use a straightthrough DB male-to-female cable to connect J to this port. If the only available serial port has a -pin connector, you may use a standard -pin to -pin adapter. Table shows the pinout of J. The MAX is an RS- interface voltage level-shifter with two transmitters and two receivers. It includes a built-in charge pump with internal capacitors that generates the output voltages necessary to drive RS- lines. 0-Pin Connectors P and P The 0 x pin headers (P and P) connect the CMOD-WIDE module to a Maxim EV kit. Table lists the function of each pin. Address Ranges The C µc generates various enable signals for different address ranges. The ROM and RAM enable signals are fed directly to the respective chips. Several additional signals (P to P ) are available on the data connector to be used by Maxim EV kits. Table outlines the address ranges for each of the elements found on the CMOD-WIDE module, and Table is a truth table that describes the logic for each of the module s chip-select outputs. Because the addresses are not completely decoded, the boot ROM and has a shadow at address 0000 hex. Table. Serial Communications Port J PIN NAME DCD RXD TXD DTR DSR RTS CTS None FUNCTION andshake; hard-wired to DTR and DSR RS--compatible data output from CMOD-WIDE module RS--compatible data input to CMOD-WIDE module andshake; hard-wired to DCD and DSR Signal ground connection andshake; hard-wired to DCD and DTR andshake; hard-wired to CTS andshake; hard-wired to RTS Boot ROM The boot ROM, U, is configured as an -bit memory device. Resistor R pulls data bit 0 low during system reset, forcing the µc to fetch instructions using only the upper eight data bits. The boot ROM checks the system and waits for commands from the host. Refer to the EV kit manual for specific start-up procedures. Software All software is supplied on a disk with the EV kit. Instructions for operating the software are included in the EV kit manual. Refer to the EV kit manual for more information. Use the CMOD-WIDE module only with those EV kits that are designed to support it, and only download code that is targeted for the CMOD-WIDE module. Downloading incorrect object code into the CMOD-WIDE module will have unpredictable results.

3 CMOD-WIDE Self Check The CMOD-WIDE module includes a self-diagnostic routine, which checks the power supply, microprocessor, RAM, and ROM, independent of the EV kit or computer. Note that it does not exercise the RS- port or the EV kit 0-pin interface. Connect the power supply to the power terminals (J) and slide the power switch SW to the ON position. The ED will light up, and will flash within seconds. If the ED flashes with a 0% duty cycle, then the module passed its self check. Table. P and P Data-Connector Signals EADER P PIN, NAME Ground return, VPREREG +V from wall cube, +V +V from M0 C-WIDE MODUE FUNCTION, 0 -V -V from IC (typically -V at ma load) PCS QSPI peripheral chip select PCS QSPI peripheral chip select PCS0/SS QSPI peripheral chip select 0 PCS QSPI peripheral chip select MOSI QSPI Master Output, Slave Input SCK QSPI Serial Clock Not used MISO QSPI Master Input, Slave Output IC General purpose I/O; Input Capture ; can be used as an IRQ 0 IC General purpose I/O; Input Capture ; can be used as an IRQ OC General purpose I/O; Output Compare IC General purpose I/O; Input Capture ; can be used as an IRQ Not used OC General purpose I/O; Output Compare OC General purpose I/O; Output Compare OC General purpose I/O; Output Compare PAI Pulse Accumulator Input If the ED flashes with a 0%-on/0%-off duty cycle, then the module failed its self check. Most likely, one of the RAM chips (U or U) is bad. If the ED remains on and does not flash, then the problem is either U (the EPROM), U (the microprocessor), U (the regulator), the MAX0 reset generator, or the power supply. Use a voltmeter to verify that the power supplies are good; check the power-supply input and the +V output from the regulator. Use an oscilloscope to see if the.kz reference oscillator is running. IC General purpose I/O; Input Capture ; can be used as an IRQ PWMB Pulse-Width Modulator B output (drives the status ED) 0 PWMA Pulse-Width Modulator A output CMOD-WIDE

4 CMOD-WIDE CMOD-WIDE Table. P and P Data-Connector Signals (continued) EADER PIN NAME Not used PCK Pulse Accumulator Clock Input C-WIDE MODUE FUNCTION CS0/F00 Chip select strobe for I/O area $F00 CS/F000 Chip select strobe for I/O area $F000 P CS/E000 Chip select strobe for I/O area $E000 P CS/E00 Chip select strobe for I/O area $E00 CS/WRIO Active low write strobe for I/O area CS/RDIO Active low read strobe for I/O area, 0 Not used EXTD0 External I/O data bus SB EXTD External I/O data bus EXTD External I/O data bus MSB, Not used A0 Word address SB 0 A0 Word address A0 Word address A0 Word address 0 Not used Table. Memory Map (all address values are in 0-bit hex) PIN FFF FFFF 0000 FFFF FF 000 DFFF E000 EFF E00 EFFF F000 FFF F00 FFFF 0000 FFFF FUNCTION Boot ROM (U, strobed by CSBOOT) Shadow of boot ROM User RAM (U and U, strobed by CS0 and CS) Internal standby RAM; kbyte External chip select (P pin ) (CS) External chip select (P pin ) (CS) External chip select (P pin ) (CS) External chip select (P pin ) (CS0) Not accessed by the C PIN F000 FFFF FF00 FFF FF0 FFFF FF00 FFF FF0 FFFF FFA00 FFAF FFA0 FFAFF FFB00 FFB0 FFB0 FFBFF FFC00 FFDFF FFE00 FFFFF FUNCTION C s built-in ADC (not used) General-purpose timer module (GPT) System integration module (SIM) Internal standby RAM (SRAM) control registers Queued serial module (QSM)

5 CMOD-WIDE CMOD-WIDE xxxx read E0xx read xxxx write Exx read E0xx write F0xx write Fxx write Fxx read F0xx read Exx write 0xxxx read CSBOOT ADDRESS RANGE CS0 CS CS CS CS CS CS CS CS0 CS/IOBUFFER CS/RDIO D00 D0 D0 D0 D0 D0 D0 D0 EXTD0 EXTD EXTD EXTD EXTD EXTD EXTD EXTD C 0.µF R 0Ω ED PWMB TSTME BKPT/DSCK BKPT/DSCK AT BERR MODCK DSACK DSACK0 IRQ 0 R 0k SIP RESISTOR DS J- J- J- J- J- J- J- J- J- J-0 BERR BKPT/DSCK FREEZE IPIPE/DSI IPIPE0/DS0 OE DIR A A A A A A A A B B B B B B B B U CT P- P- P- P- P- P- P- P- P- P- P- P- P- P- P- P- P- P- P- P- P- P- P- P- P-0 P- P- P- P- P-0 P- P- P- P- P-0 P- P- P- P- P-0 VPREREG -V PCS PCO/SS MOSI IC OC OC PAI PWMB CS0/F00 CS/E000 CS/WRIO VPREREG -V PCS PCS SCK MISO IC IC OC OC IC PWMA PCK CS/F000 CS/E00 CS/RDIO CS/IOBUFFER CS/RDIO D0 D0 D0 D D D D D EXTD EXTD EXTD0 EXTD EXTD EXTD EXTD EXTD OE DIR A A A A A A A A B B B B B B B B U CT P- P- P- P- P- P- P- P- P- P- P- P- P- P- P- P- P- P- P- P- P- P- P- P- P-0 P- P- P- P- P-0 P- P- P- P- P-0 P- P- P- P- P-0 EXTD0 EXTD EXTD EXTD EXTD EXTD0 EXTD EXTD A0 A0 EXTD EXTD EXTD EXTD EXTD EXTD EXTD EXTD A0 A0 Figure. CMOD-WIDE Module Schematic Table. Chip-Select Outputs Truth Table

6 CMOD-WIDE CMOD-WIDE BR FC FC FCO CSBOOT DATA0 DATA DATA DATA VSSI DATA DATA DATA DATA DATA DATA DATA0 DATA DATA DATA DATA DATA ADDRO DSACK0 DSACK AVEC DS AS A0 A0 A0 A0 A0 A0 A0 A0 A0 A0 A A A A A VSS VR ADA ADA VSTBY XTA VDDSYN EXTA VSSI VDDI XFC CKOUT FREEZE/QUOT TSTME/TSC BKPT/DSCK IPIPE0/DS0 IPIPE/DS AT BERR IRQ IRQ IRQ IRQ IRQ IRQ IRQ MODCK R/W SIZ SIZ TXD ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR VSSI ADDR ADDR0 ADDR ADDR ADDR ADDR ADDR ADDR ADDR ADDR VDDA VSSA ADA0 ADA ADA ADA ADA ADA VR RXD PCS PCS PCS PCS0/SS SCK MOSI MISO IC IC IC OC OC VSSI VDDI OC OC IC/OC PAI PWMA PWMB PCK ADDR ADDR ADDR ADDR0 ADDR BGACK BG CSO/WRRAMIG CS/WRIO CS/WRRAMOW CSBOOT/RDROM DOO DO DO DO DO DO DO DO DO DO VSS D0 D D D D D AOO DSACKO DSACK DS RXD TXD PCS PCS PCS CS0/F00 CS/F000 CS/E00 CS/E000 CS/IOBUFFER CS/RDRAM CS/RDIO IC IC IC OC OC OC OC IC PAI PWMA PWMB PCK MISO MOSI SCK PCSO/SS XTA EXTA CKOUT FREEZE TSTME BKPT/DSCK IPIPEO/DS0 IPIPE/DSI AT BERR IRQ MODCK C µf 0V V CC C0 0.µF C 0.µF U MOTOROA MCCZCFC Figure. CMOD-WIDE Module Schematic (continued)

7 CMOD-WIDE CMOD-WIDE IN OUT U M0 + C µf V C µf V C 0µF VPREREG D N00 SW POWER J C pf C pf R 0k R 0M Y.kz XTA EXTA PFO N.C. MR PFI N.C CAP+ CAP- U MAX0 U0 IC SW TOUT TOUT RIN RIN TIN TIN ROUT ROUT J- J- J- J- J- J- J- J- J- CTS RTS RXD TXD DTR DSR DCD RI 0 C+ C+ C- C- C+ C- V- V- V+ 0 U MAX TXD RXD A0 A0 A0 A0 A0 A0 A0 A0 A0 A0 A A A A A CS/RDRAM CS/WRRAMOW 0 0 D00 D0 D0 D0 D0 D0 D0 D0 A0 A A A A A A A A A A0 A A A A CS OE WE I/O0 I/O I/O I/O I/O I/O I/O I/O U k x -BIT IG-SPEED CMOS STATIC RAM C 0.µF D00 R 0k D0 R 0k A0 A0 A0 A0 A0 A0 A0 A0 A0 A0 A A A A A CS/RDRAM CS0/WRRAMIG 0 0 D0 D0 D0 D D D D D A0 A A A A A A A A A A0 A A A A CS OE WE I/O0 I/O I/O I/O I/O I/O I/O I/O U k x -BIT IG-SPEED CMOS STATIC RAM C 0.µF A00 A0 A0 A0 A0 A0 A0 A0 A0 A0 A0 A A A A CSBOOT/RDROM 0 0 D0 D0 D0 D D D D D A0 A A A A A A A A A A0 A A A A VPP OE CE DQ0 DQ DQ DQ DQ DQ DQ DQ U C k x -BIT CMOS EPROM C 0.µF C 0.µF V+ OSC V VOUT C 00µF R 00 -V D INA V Figure. CMOD-WIDE Module Schematic (continued)

8 CMOD-WIDE CMOD-WIDE.0" Figure. CMOD-WIDE Module Component Placement Guide

9 CMOD-WIDE CMOD-WIDE.0" Figure. CMOD-WIDE Module PC Board ayout Component Side

10 CMOD-WIDE CMOD-WIDE.0" Figure. CMOD-WIDE Module PC Board ayout Solder Side 0

11 CMOD-WIDE NOTES CMOD-WIDE

12 CMOD-WIDE CMOD-WIDE NOTES Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 0 San Gabriel Drive, Sunnyvale, CA Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.